A statement from the Office of County Commissioners says the inmate was scheduled to be released on Nov. 25, 2014, subject to a parole plan, which was put in place on Dec. 1, 2014. However, in the interim, new charges filed against another inmate who had the same last name were mistakenly placed in the wrong file, delaying the other inmate’s release until late in April 2016.

According to the statement, the other inmate was also held because the files had been duplicated and placed in both inmates’ folders.

In a prepared statement, Lancaster County Prison Warden Cheryl Steberger said, “We publicly acknowledge our mistake to assure the community that Lancaster county officials not only profoundly regret its impact on the individual, but to make clear that such situations are unacceptable. The ongoing investigation conducted has revealed a continuing need to improve Lancaster County Prison as an organization, and, specifically, to revise processes for the storage, filing and review of documents.”